{
  "manageEntity": {
    "action": "Update",
    "entityId": "875633562",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6yylyotdhvjxht5o23b5yqqkfxgihcjjbnnbkq2qw7pcncaq7r5q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1519006742},{\"type\":\"playlist\",\"playlist_id\":1809558807},{\"type\":\"playlist\",\"playlist_id\":571771145}]}}}",
    "nonce": "0x362e7952049cd66f7ed7882c5abe93a59b1a6328d41a1a4ab8e48fdc969fe7e0",
    "signature": "0xe32f247da5d4c70f2d5071a2c0c93c86e95cde03007f604dfef318bee408d81505da3f74bba54bf5fcacfeb8268971717eebca35ec5f4a6c44ff6f4a733daae61b",
    "signer": "0x947961BC505575F3AebDb3D1f863CDd20768D104",
    "userId": "875633562"
  }
}